arca

README

GOBL ➡️ Argentina ARCA

Argentina ARCA (Agencia de Recaudación y Control Aduanero) e-invoicing addon for GOBL.

Copyright Invopop S.L. 2026. Released publicly under the GNU Affero General Public License v3.0. For commercial licenses please contact the dev team at invopop.

This module implements the Argentina ARCA v4 e-invoicing requirements as a GOBL tax addon (ar-arca-v4), based on the ARCA web services for electronic invoices (WSFE) and tourism invoices (WSCT). It covers invoices, credit notes, and debit notes of types A, B, C, and T, with validation rules registered under the AR-ARCA namespace.

The addon lives in the addon/ subpackage and registers into GOBL's global registry on import; the module root is reserved for future ARCA tooling. The Argentine tax regime (regimes/ar) stays in GOBL core.

Usage

Add a blank import of the addon, then declare it on documents:

import (
	_ "github.com/invopop/gobl.ar.arca/addon"
)

{
	"$schema": "https://gobl.org/draft-0/bill/invoice",
	"$regime": "AR",
	"$addons": ["ar-arca-v4"]
}

Note: ar-arca-v4 is an approved external addon key in GOBL core, but documents declaring it fail validation unless this module is imported.

Extensions

Key	Description
ar-arca-doc-type	Document type (A, B, C, or T variants). Normalized from the customer VAT status and invoice type when missing.
ar-arca-concept	Concept: goods, services, or both. Normalized from the line items.
ar-arca-identity-type	Customer identity document type for customers without a tax ID.
ar-arca-vat-status	Customer VAT status. Normalized from the customer tax ID.
ar-arca-vat-rate	VAT rate code for tax combos. Normalized from the GOBL rate.
ar-arca-tax-type	Tax type for charges reported as other taxes.
ar-arca-tourism-type	Issuer-receiver relationship for tourism (type T) invoices.
ar-arca-tourism-item	Tourism item code for type T lines and discounts.

Development

examples/ holds sample documents with golden envelopes under examples/out/; regenerate them with:

go test . -run TestExamples -update

Sources

• ARCA WSFE developer manual (COMPG v4.0, PDF)
• ARCA WSCT developer manual v1.6.4 (PDF)

Documentation

Overview

Package arca is the root of the Argentina ARCA module for GOBL. The GOBL addon itself lives in the addon subpackage; this root package is reserved for converters and other ARCA tooling built on top of the addon.